[3] Alcimachus was the first born of four sons to Agathocles[4] and his wife, perhaps named Arsinoe.
His paternal grandfather may have been called Alcimachus and one of his brothers was Lysimachus one of the Diadochi of Alexander the Great.
[5] His father was a nobleman of high rank who was an intimate friend of Philip II, who shared in Philip II's councils and became a favorite in the Argead court.
[8] Two years after the Battle of Chaeronea in 338 BC, Alcimachus and Antipater were sent by Philip II to Athens where they were made Proxenoi of Athens where they were honored in a decree.
[9] Two years later Alcimachus was in charge of an army, empowered by Alexander to ‘liberate’ the cities of Ionia and Aeolis.